\textit{Panel A: Production coefficients} &  \multicolumn{2}{c}{ Labor }   &  \multicolumn{2}{c}{ Materials}  &  \multicolumn{2}{c}{ Capital }      \\ 
                    &\multicolumn{1}{c}{Est.}&\multicolumn{1}{c}{S.E.}&\multicolumn{1}{c}{Est.}&\multicolumn{1}{c}{S.E.}&\multicolumn{1}{c}{Est.}&\multicolumn{1}{c}{S.E.}\\
 \hline  &&&\\ \textit{Additional instruments:} &&&&\vspace{0.5em} \\   
Agricultural wage   &       0.699&       0.338&       0.222&       0.141&       0.153&       0.074\\
\addlinespace
No additional IV    &       1.475&       0.211&       0.586&       0.119&       0.153&       0.038\\
\addlinespace
Ag. wage drivers    &       1.192&       0.327&       0.401&       0.141&       0.162&       0.066\\
 &&&&\\   \hline    
 \textit{Panel B: Ag. wage drivers} &  \multicolumn{2}{c}{ log(Ag. wage)}     \\ 
                    &\multicolumn{1}{c}{Est.}&\multicolumn{1}{c}{S.E.}\\
 \hline  &&\\   
Ag. labor productivity&      -0.129&       0.079\\
\addlinespace
Ag. import price    &       0.270&       0.056\\
 &&\\  R-squared &     \multicolumn{2}{c}{.925} \\    Observations &        \multicolumn{2}{c}{58}  \\  \hline    
